title: New light shed on the oldest insect.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D005580:Fossils; D007313:Insecta / Q000033:anatomy & histology* / Q000145:classification*; D008334:Mandible / Q000033:anatomy & histology; D010802:Phylogeny; D012606:Scotland; D013997:Time Factors